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Add connected gamepads on start

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Trigger SDL_CONTROLLERDEVICEADDED for all gamepads already connected
when scrcpy starts. We want to handle both the gamepads initially
connected and the gamepads connected while scrcpy is running.

This is not racy, because this event may not be trigged automatically
until SDL events are "pumped" (SDL_PumpEvents/SDL_WaitEvent).

PR #5270 <https://github.com/Genymobile/scrcpy/pull/5270>
This commit is contained in:
Romain Vimont 2024-09-06 23:08:08 +02:00
parent a34a62ca4b
commit 3e68244dd3
1 changed files with 20 additions and 0 deletions
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20
app/src/scrcpy.c
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@ -342,6 +342,21 @@ scrcpy_generate_scid(void) {
return sc_rand_u32(&rand) & 0x7FFFFFFF;
}
static void
init_sdl_gamepads(void) {
// Trigger a SDL_CONTROLLERDEVICEADDED event for all gamepads already
// connected
int num_joysticks = SDL_NumJoysticks();
for (int i = 0; i < num_joysticks; ++i) {
if (SDL_IsGameController(i)) {
SDL_Event event;
event.cdevice.type = SDL_CONTROLLERDEVICEADDED;
event.cdevice.which = i;
SDL_PushEvent(&event);
}
}
}
enum scrcpy_exit_code
scrcpy(struct scrcpy_options *options) {
static struct scrcpy scrcpy;
@ -868,6 +883,11 @@ aoa_complete:
timeout_started = true;
}
if (options->control
&& options->gamepad_input_mode != SC_GAMEPAD_INPUT_MODE_DISABLED) {
init_sdl_gamepads();
}
ret = event_loop(s);
terminate_event_loop();
LOGD("quit...");